Analysis and Design Optimization of Flexible Pavement

Mamlouk, Michael; Zaniewski, John P; He, Wei

doi:10.1061/(asce)0733-947x(2000)126:2(161)

Cited by 24 publications

(10 citation statements)

References 1 publication

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“…The adopted failure criterion of the design was the subgrade shear failure mode and the experience from previous pavement construction projects. In the early 1960s, the trend of flexible pavement design shifted from empirical methods to a combined mechanistic-empirical method [24,25], which is more reasonable because an empirical model is supplemented with the theory of mechanics and the observed performance of the pavement structure in the design and analysis procedures [5]. For the details of the adopted mechanistic approach, the pavement response parameters including stresses, strains, and deformations were taken into account to estimate the influences of traffic loading and environmental factors.…”

Section: Traffic Loading Response and Repeated Load Triaxial Testmentioning

confidence: 99%

Influence of Degree of Saturation (DOS) on Dynamic Behavior of Unbound Granular Materials

Sun

Ong

2021

Geosciences

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The extensive application of natural unbound granular materials (UGMs) motivates studies into the mechanical properties of alternatives such as processed crushed rocks employed commonly as base or subbase layers. The rutting and settlement generated in base and subbase layers is widely restricted in many specifications and standards. In this research, the dynamic behavior including the resilient modulus () and the plastic strain () of the crushed rocks collected from Queensland in Australia will be tested by a series of repeated load triaxial test (RLT) tests to investigate the behavior of UGMs under the fluctuation of the degree of saturation (DOS) (59%–100%). In particular, the RLT specimens were prepared in the laboratory through proper gradation under optimum moisture content (OMC) and 100% standard proctor maximum dry unit weight. Results from the RLT tests showed that UGM specimens soaked at higher DOS generated lower resilient modulus and weaker resistance to heavy traffic volumes with significant accumulation of plastic strain. The and of the tested aggregates under different cyclic deviator stresses of 425 kPa and 625 kPa approximately linearly decreased and approximately linearly increased as the DOS increased with a certain number of cycles up to 50,000, respectively.

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Section: Traffic Loading Response and Repeated Load Triaxial Testmentioning

confidence: 99%

Influence of Degree of Saturation (DOS) on Dynamic Behavior of Unbound Granular Materials

Sun

Ong

2021

Geosciences

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“…This method enables the obtaining of the least cost design for flexible and rigid pavements without manual iteration [17]. Mamlouk et al developed a project-level optimization approach to minimize total pavement cost within an analysis period [18]. This approach enables the designer to select the optimum initial pavement thickness, overlay thickness, and overlay timing.…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

An Optimization Model for Design of Asphalt Pavements Based on IHAP Code Number 234

Ghanizadeh

2016

Advances in Civil Engineering

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Pavement construction is one of the most costly parts of transportation infrastructures. Incommensurate design and construction of pavements, in addition to the loss of the initial investment, would impose indirect costs to the road users and reduce road safety. This paper aims to propose an optimization model to determine the optimal configuration as well as the optimum thickness of different pavement layers based on the Iran Highway Asphalt Paving Code Number 234 (IHAP Code 234). After developing the optimization model, the optimum thickness of pavement layers for secondary rural roads, major rural roads, and freeways was determined based on the recommended prices in “Basic Price List for Road, Runway and Railway” of Iran in 2015 and several charts were developed to determine the optimum thickness of pavement layers including asphalt concrete, granular base, and granular subbase with respect to road classification, design traffic, and resilient modulus of subgrade. Design charts confirm that in the current situation (material prices in 2015), application of asphalt treated layer in pavement structure is not cost effective. Also it was shown that, with increasing the strength of subgrade soil, the subbase layer may be removed from the optimum structure of pavement.

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“…This shortcoming was addressed by Abaza (2002) and Abaza and Abu-Eisheh (2003) who proposed a life-cycle model of flexible pavements that considers road user cost in the optimization of maintenance strategy. Mamlouk et al (2000) developed a project-level pavement management system for analyzing optimal pavement design and maintenance strategies (PDMSs). Jain et al (2011) suggested a decision tree approach to find the optimal maintenance strategy.…”

Section: Literature Reviewmentioning

confidence: 99%

Selection of Optimum Maintenance and Rehabilitation Strategy for Multilane Highways

Jain¹,

Jain²,

Chauhan³

2013

IJTTE

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Pavements which are left to deteriorate without timely maintenance treatments are likely to require major rehabilitation and reconstruction much sooner than those which are properly maintained. In developing countries like India, where the traffic growth and axle loading is growing at logarithmic scale, deterioration of highways is very fast. This increased traffic demands for multilane highways with proper maintenance time to time. During the process of road network maintenance and rehabilitation, road authorities strive to select an optimum maintenance strategy from a number of alternatives. This selection may be obtained only through a realistic approach. An economically acceptable maintenance strategy may be selected among a number of maintenance alternatives. It can be done by calculating and comparing the various maintenance and rehabilitation (M&R) alternatives with the help of Highway Development and Management tool (HDM-4). This available technology and tool that makes implementing an effective pavement rehabilitation program feasible, is globally accepted. This paper specifically addresses flexible pavement, including the multilane highways from northern region of India. Study involves the data collection and selecting the optimum M&R strategy by using programme analysis component of HDM-4 for selected road sections. It is expected that the information contained in this paper would be useful for developing optimum maintenance management strategy for multilane highways.

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Analysis and Design Optimization of Flexible Pavement

Cited by 24 publications

References 1 publication

Influence of Degree of Saturation (DOS) on Dynamic Behavior of Unbound Granular Materials

Influence of Degree of Saturation (DOS) on Dynamic Behavior of Unbound Granular Materials

An Optimization Model for Design of Asphalt Pavements Based on IHAP Code Number 234

Selection of Optimum Maintenance and Rehabilitation Strategy for Multilane Highways

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